The usage of maize wastes as surface cover and its implications in the economy of nitrogen on maize cultivars.
DOI:
https://doi.org/10.15517/am.v8i2.24663Abstract
Based on results from 89-91,92-95; the Regional Coro Program established 12 regional trials to evaluate severallevels of humus (0,2.5,5 and 10 t/ha) at varying levels of Nitrogen (0.75 and 150 kg/ha). Some of these trials have been performed for two or three years at the same site. A negative interaction between net effect of humus and grain yield was found. Response to N was positive at all localities. At all humus levels, yield increased from 0 to 75 kg/ha of N; however, no difference was observed between 75 and 150 kg/ha of N. Ear rot was more related to low N levels than to high humus levels. Results suggest that in order to avoid negative impact of superficial humus on corn grain yield, N must be added at a dose ranging between 100 and 150 kg/ha.
Downloads
References
BARRETO, J. 1989. Cambios en propiedades químicas, patrones de fertilización y encalamiento en suelos bajo labranza cero. Documento de trabajo CIMMYT-PROCIANDINO. El Batán, México. pp. 43-70.
BOLAÑOS, 1. 1989. Suelos en relación a la labranza de conservación: aspectos físicos. Documento de trabajo CIMMYT-PROCIANDINO. El Batán. México. p. 19-42.
BOLAÑOS, J.; BARRETO, H. 1991. Análisis de los componentes de rendimiento de los ensayos regionales de maíz de 1990. Análisis de los Ensayos Regionales de Agronomía, 1990. Programa Regional de Maíz. Guatemala. pp. 9-25.
CALDERON, F. 1991. Aspectos institucionales de la adaptación y difusión de la labranza de conservación en Metalío- Guaymango, El Salvador. Documento de trabajo Programa Regional de Maíz. Guatemala. pp. 73-83.
INSIVUMEH. 1984. Análisis de la estación lluviosa de Guatemala con fines agrícolas. Departamento de Sistemas Atmosféricos. Sección de Climatología-Agrometeorología. Guatemala. pp 11-12.
JOHNSON, RR 1988. Soil engaging tool effects on surface residue and roughness with chiseltape implements. Soil Sci. Soc. Am. 1. 52:237-243.
SOIL CONSERVATlON SOCIETY OF AMERICA. 1976 Resource Conservation Glossary. Ankeny, Iowa.
SOSA, H. 1992. Efecto de la cantidad de mantillo en el rendimiento de los sistemas maíz-sorgo y maíz-frijol, bajo Labranza cero, El Salvador 1991. Síntesis de Resultados Experimentales de 1991. Programa Regional de Maíz. Guatemala. Vol 3. pp. 105-114.
SOSA, H. 1993. Respuesta diferencial del maíz a la labranza de conservación a distintas dosis de nitrógeno. pp. 119- 123 en Síntesis de Resultados Experimentales del PRM 1992, Guatemala, Vol. 4.
SOSA, H.; J. BOLAÑOS. 1993. Respuesta del maíz-maicillo y maíz-frijol a distintos niveles de mantillo bajo labranza de conservación. Síntesis de Resultados Experimentales del PRM 1992. Guatemala. Vol. 4, pp. 114-118.
VIOLIC, D. 1989. Breve historia de la labranza de conservación. Documento de trabajo CIMMYT-PROCIANDINO. El Batán. México. pp. 1-4.
ZEA, L. 1995. Efecto de dosis de rastrojo y nitrógeno sobre el rendimiento de maíz (Zea mayz L.) en dos localidades de Guatemala. Informe de Resultados 1994, Programa de Maíz, Instituto de Ciencia y Tecnología Agrícolas. Guatemala, pp. 110-115.
Downloads
Published
How to Cite
Issue
Section
License
1. Proposed policy for open access journals
Authors who publish in this journal accept the following conditions:
a. Authors retain the copyright and assign to the journal the right to the first publication, with the work registered under the attribution, non-commercial and no-derivative license from Creative Commons, which allows third parties to use what has been published as long as they mention the authorship of the work and upon first publication in this journal, the work may not be used for commercial purposes and the publications may not be used to remix, transform or create another work.
b. Authors may enter into additional independent contractual arrangements for the non-exclusive distribution of the version of the article published in this journal (e.g., including it in an institutional repository or publishing it in a book) provided that they clearly indicate that the work was first published in this journal.
c. Authors are permitted and encouraged to publish their work on the Internet (e.g. on institutional or personal pages) before and during the review and publication process, as it may lead to productive exchanges and faster and wider dissemination of published work (see The Effect of Open Access).
